Question

Program to check whether the matrix is symmetric matrix
(symmetric matrix is a square matrix that is equal to its transpose)

				
					Matrix: 
[3, -2, 4]
[-2, 6, 2]
[4, 2, 3 ]

TRANSPOSE:
[3, -2, 4]
[-2, 6, 2]
[4, 2,  3]
THE MATRIX IS SYMMETRIC MATRIX

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Code

				
					import java.util.Scanner;
public class symmetricMatrix  
{  
    public static void main(String[] args)
    {  
        int row=0, col=0,i=0,j=0;  
        int a[][],t[][];
        boolean flag=true;
        
        Scanner sc=new Scanner(System.in);
        System.out.println("ENTER THE ROW OF MATRIX");
        row=sc.nextInt();
        System.out.println("ENTER THE COLUMN OF MATRIX");
        col=sc.nextInt();
        if(row!=col)
        {
            System.out.println("MATRIX NEEDS TO BE SQUARE MATRIX"); 
        }
        else
        {
            a=new int[row][col];
            t=new int[row][col];
            System.out.println("ENTER THE ELEMENTS IN MATRIX");
            for(i=0;i< row;i++)
            {
                for(j=0;j< col;j++)
                {
                    a[i][j]=sc.nextInt();
                }
            }
            
        
            for(i=0;i< row;i++)
            {
                for(j=0;j< col;j++)
                {
                    t[i][j]=a[j][i];
                    
                    /*checking if element of transpose matrix is not equal to element original matrix at positions 'i' and 'j'*/
                    if(t[i][j]!=a[i][j])
                    {
                        flag=false;
                    }
                    
                }
            
            }
        
            System.out.println("TRANSPOSE OF MATRIX: ");
            for(i=0;i< row;i++)
            {
                for(j=0;j< col;j++)
                {
                    System.out.print(t[i][j]+" ");
                }
                System.out.println();
            
            }
        
        
            
            if(flag==false)
            {
                System.out.println("MATRIX IS NOT SYMMETRIC MATRIX");
            }
            else
            {
                System.out.println("MATRIX IS  SYMMETRIC MATRIX");
            }
        
        }

        
        
    }  
}